Windmill



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llll lIlI Patented Dee. Z8, 1886.

W. e. WESTAWAY.

WINDMILL.

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(No Model.)

wzzaasesf '11!4 e NITED STATES PATENT Brion,

WINDMILL.

SPECIFICATION' forming part of Letters Patent No. 355,236, dated December 28, 1886.

Application iled September 9, 1886. Serial No. 213,093. (No model.)

To all whom it may concern:

Be it known that I, WALTER GWESTAWAY, of Beloit, in the county of Rock,and in the State of Wisconsin, have invented certain new and useful Improvements in Windmills; and I do hereby declare that the following is a fnll, clear, and exact description thereof.

My invention relates to windmills; and it consists in certain peculiarities of construction and combination of parts,as will be hereinafter described with reference toY the accompanying drawings, in Which- Figurel represents a side elevation of a portion of a windmill having my invention' applied thereto; Fig. 2, an enlarged elevation of the side opposite that shown in the preceding gure; Fig. 3, a vertical central section, and Fig. 4 a top view of the cross-head.

Referring by letter to the drawings, A represents the tower, B the mast, C the casting that supports the wheel-shaft, D the wheelspider, E the pitman and F the pump-rod, these parts, with the exception of said casting, being of the ordinary construction, while all are in the usual operative'arrangement.

The casting C has socket-studs G laterally projected from its base, and these studs receive the lower ends of vertical rods H, that are passed through bracket-extensions I of said casting to serve as guides for a sliding gate, J, the latter having a pivotal member, K, that is provided with a socket, L, for the shaft of a Vane, M, and a stop, N, to limit the lateral movement of said vane when /the wheel comes full in the wind.

The bracket-extensions I of the casting Care provided with bearings for a horizontal shaft, l?, to which is rigidly connected a lever-block, Q, the latter being toggled by links R to the sliding gate J, said links being oppositely arranged, and the block provided with an eye, S, to whichI is attached one end of a chain, T, that passes up over a sheave, U, journaled in a bracket, V, of a cross-head, V, secured to the upper ends of the rods II to hold thelatter in position, and said chain finally connects with a pull-rod, T, that is intended to be united in the usual manner with a lever at the base of the tower. The cross-head V is also provided with a central guide, V2, for the pumprod F,below the connection of the latter with the pitman E. One end ofthe horizontal shaft has fast thereon a leverarm, W, that is connected with the pivotal member K of the sliding gate J by means of a link, X. f

When the wheel is full in the wind,the several parts of my device stand in the position as shown by Fig. l; and should the velocity1 of the wind increase to such an extent as to cause said wheel to start. out of the wind the movement of the vane will, through the linkconnection X, cause the pivotal member K of the gate J `to exert pressure against the leverarm W on the shaft P, to thereby operate the lever-block Q, the latter in turn, through the toggle-links R,causing the main portion of said gate to have an upward movement onthe guiderods H,that are permanently retainedin posisys tion by the studs G and bracketextensions I on the casting O and the cross-head V. The resistance to the movement of the wheel is least at the time the latter rst starts out of the wind, for the reason that the lever-block Q is approximately vertical, and this resistance is correspondingly increased in proportion as said wheel andthe vane approach toward the same relative plane, owing to the fact that' the leverage becomes momentarily greater as said block approaches towarda horizontal position, as shown by Fig. 2.

As above described, it will be readily seen that the resistance is a variable one and -is proportionate to the velocity of the wind, thereby ope-rating to keep the wheel up toits work until the wind-currents attain a velocity sufficient to overcome said resistance and force the wheel entirely out of the wind. When the velocity of the wind decreases, the weight of the sliding gate and the vane will aid to lessen the leverage of the block, and the latter will be automatically forced down toward its original position in proportion to such decrease until the wheel is again full in the wind, the stop on said gate serving to limit this return movement.

It will be noticed that the toggle-links R exert their force in opposite directions to prevent the gate J from binding on the guide-rods H, thereby lessening the friction between said parts. I

At any time it is desirable totlllow the wheel out of the wind for the purpose of stopping the mill, the lever-block Q is operated by its chainand-rod connection T T to bring the vaneinto the-same relative plane with said wheel.

IOC)

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a Windmill, the combination of a gate arranged to slide vertically on suitable guides, and having a pivotal member attached to a vane, a lever-block fast on a suitable shaft and operatively connected with the main portion of the gate, and means, substantially as described, for uniting the shaft with the pivotal member of said gate, as and for the purpose set'forth.

2. In a Windmill, the combination of a gate arranged to slidevertically on suitable guides, and having a pivotal member attached to a vane, a lever-block fast on a suitable shaft and toggled to the upper and lower ends of the main portion of the gate, a 1everarm keyed to the shaft, and a suitable link that unites the arm and pivotal member of said gate, substantially as and for the purpose set forth.- l

3. In a Windmill, the combination of a gate arranged to slide vertically on suitable guides, and having a pivotal member attached to a vane, a lever-block fast on a suitable shaft and operatively connected to the main portion of the gate, a lever-arm keyed to the shaft and operatively ,united with the pivotal member of said gate, and a pull-out chain connected to said lever-block, substantially as and for the purpose set forth.

4. In a windmill, the wheel-shaft support provided with lateral socketstuds and bracketextensions, in combination with vertical rods retained by said sockets and extensions, a gate arranged to slide on the rods and having a pivotal member attached to a vane, a horizontal shaft that has its bearings in said bracket-ex; tensions, a lever-block fast on the shaft and operatively connected to the main portion of the gate, and a lever-arm keyed to said shaft and operatively united to the pivoted member of said gate, substantially as and for the purpose set-forth.

5. In a windmill, the Wheel support provided with lateral socket-studs and bracketextensions, vertical rods retained in saidstuds and extensions, and a cross-head arranged to unite the rods at their upper ends, said crosshead having apump-rod bearing and a sheave, in combination with a sliding gate loose on said rods and having a pivotal member attached to a vane, a horizontal shaft journaled in said bracket-extensions, a lever-block oper,- atively connected to the main portion of the gate, a lever mechanism operatively uniting the pivotal member of the latter with said shaft, and a chain for connecting the lever block with a pull-rod, substantially as and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand, at Rockford, in the county of Vinncbago and State of Illinois, in the presence of two Witnesses.

WALTER C. NVESTAVVAY.

Witnesses:

S. F. PnNFIELD, JOHN H. OARLIN. 

